color

(redirected from chromatics)
Also found in: Dictionary, Thesaurus, Legal, Encyclopedia, Wikipedia.

color

 [kul´er]
1. a property of a surface or substance due to absorption of certain light rays and reflection of others within the range of wavelengths (roughly 370 to 760 nm) adequate to excite the retinal receptors.
2. radiant energy within the range of adequate chromatic stimuli of the retina, i.e., between the infrared and the ultraviolet.
3. a sensory impression of one of the rainbow hues.
primary c's a small number of fundamental colors. In visual science this refers to red, green, and blue, the colors specifically picked up by the retinal cones; mixtures of varying proportions of the primary colors will yield the 150 discriminable hues of normal human vision. In painting and printing, the primary colors are red, blue, and yellow.
color vision deficiency inability to distinguish between certain colors, popularly called “color blindness.” A complete deficiency (monochromatic vision), the total inability to see colors, is rare, affecting only one person in 300,000. Much more common are the various types of partial deficiency. The most common is red-green confusion (see deuteranopia and protanopia), which affects approximately 8 million people in the United States.

Color vision is a function of the cones in the retina of the eye, which are stimulated by light and transmit impulses to the brain. It is now thought that there are three types of cones, each type stimulated by one of the primary colors in light (red, green, and blue or violet). In red-green color vision deficiency, there is a deficiency of either red or green receptors, so that the two colors do not appear distinct from each other.

Color vision is usually tested by the ishihara test with a series of pseudoisochromatic charts or plates. (See Atlas 4, Part F.) These have a letter, number, or symbol printed in dots of one color in the midst of dots of gray or other colors. The normal person can see the symbol with no difficulty, but the person with color vision deficiency cannot distinguish it from the background.

Although color vision deficiency may occasionally result from injuries, diseases, or certain drugs, most cases are hereditary. It is usually inherited by males through the mother, who carries the trait from her father although she is not color deficient herself. In some cases, if the grandfather is color deficient and the mother carries the trait, a daughter may inherit color vision deficiency, but the ratio of men to women with inherited forms is about 20 to 1. There is no known cure for color vision deficiency.

col·or

(kŭl'ŏr),
1. That aspect of the appearance of objects and light sources that may be specified as to hue, lightness (brightness), and saturation.
2. That portion of the visible (370-760 nm) electromagnetic spectrum specified by wavelength, luminosity, and purity.
[L.]

color

/col·or/ (kul´er)
1. a property of a surface or substance due to absorption of certain light rays and reflection of others within the range of wavelengths (roughly 370–760 mμ) adequate to excite the retinal receptors.
2. radiant energy within the range of adequate chromatic stimuli of the retina, i.e., between the infrared and ultraviolet.
3. a sensory impression of one of the rainbow hues.

complementary colors  a pair of colors the sensory mechanisms for which are so linked that when they are mixed on the color wheel they cancel each other out, leaving neutral gray.
confusion colors  different colors liable to be mistakenly matched by persons with defective color vision, and hence used for detecting different types of color vision defects.
primary colors  a small number of fundamental colors; (a) in visual science, red, green, and blue, the colors specifically picked up by the retinal cones; (b) in painting and printing, blue, yellow, and red.
pure color  one whose stimulus consists of homogeneous wavelengths, with little or no admixture of wavelengths of other hues.

col·or

(kŭl'ŏr)
1. That aspect of the appearance of objects and light sources that may be specified as to hue, lightness (brightness), and saturation.
2. That portion of the visible (370-760 nm) electromagnetic spectrum specified as to wavelength, luminosity, and purity.
Synonym(s): colour.
[L.]

color

1. a property of a surface or substance due to absorption of certain light rays and reflection of others within the range of wavelengths (roughly 370 to 760 nm) adequate to excite the retinal receptors.
2. radiant energy within the range of adequate chromatic stimuli of the retina, i.e. between the infrared and ultraviolet.
3. a sensory impression of one of the rainbow hues.

broken color
in decribing coat color, a solid color broken up by another color, usually white.
coat color
color dilution
reduction of the concentration of the color pigment in tissue; most important in hair and other fiber coats, in the skin and in the ocular iris.
color dilution alopecia
see color mutant alopecia.
color flow Doppler
color pigments
the pigments influencing skin color are melanin, melanoid, oxygenated hemoglobin, reduced hemoglobin, carotene.
color radical
color vision
the domestic animal species have limited color vision, the best perception being in bright light. Birds probably have the best, cattle and sheep the least, if any.

Patient discussion about color

Q. Why is the color draining from my eyes?! When I was little I had rich shiny cobalt blue eyes! As I grew up they faded or just started to dim in color. Being partially blind you can see in my left eye the its a really light color and creamy instead of my deep blue color... Why does my eye color dim?! I didnt think going blind had anything to do with the color of my eyes changing... Or is it something else?! Please, and thank you!

A. depends on your blindness, if it is caused by your cornea changing (corneal opacity)- it'll change your eye color to a cloudy white. it can also be caused by cataract.
are those the reason of your blindness?

Q. If someone as alcoholism do there eyes change color? My husband says his work mate told him that if you’re an alcoholic your eyes can change color. As an example If you have blue eyes they become a darker blue because of something in your bloodstream?. I think my husband’s workmate is winding my husband up, or is he telling the truth?

A. That is an untruth. The color of the eyes in an alcoholic will not change color. The only thing in the eyes that will change color are the corneas (the whites of the eyes) they will turn yellow due to jaundice and probably cirrhosis of the liver. The skin will also turn yellow with the jaundice.

Q. What exactly is PPD? I heard it is a substance in hair color and that some women are allergic to it How can I know if I’m allergic to it?

A. That sounds nasty... so how can I know if i'm allergic to it or not?

More discussions about color
References in periodicals archive ?
The chromatic solution came by combining four colors out of which the mosaic outfit would be composed (green, yellow, brown, black).
The voice line is demanding, stretching across one and a half octaves and often articulating notes of the soprano's upper register, with frequent leaps and added chromatics.
Chromatics is a revolutionary new product that will allow our customers to effectively paint their device in a matter of minutes and for under $30, something that takes weeks and costs well over $100 with competing products," explained Patrick Dixon, general manager of PhantomSkinz.
Central to "Image Life," the first London solo exhibition by the DIS collective, was the video installation Image Life (Related by Contour) (all works 2016): It depicts a similar hybrid of performed racial inclusivity and inclusive chromatics but aspires to stock-photography genericism.
That was when his chromatics started to brighten, predominated by red (from London's bus and telephone).
Elsewhere the tablet-produced sound recalls Chromatics and Iggy Pop's classic Nightclubbing from the album The Idiot.
9 108 Bromley's Magic Soaps 119 Brut 76 Bureau of Indian Standards 98 Butter London 59 Calvin Klein 76 Carex 81 Carolina Herrera 81 CCA Industries 116 Chanel 76, 81 Charles of the Ritz 76 Charlie 76 Christian Dior 81 Chromatics 81 CK One 76 Clarins 81 Clean & Clear 108 Clear Men Scalp 30 Cloudbreak Group 72 Colgate 24, 30 Collistar 81 ColorInsider 81 Concoctions 40 Consumer Product Safety Commission 36 Cosme Decorte 81 Cosmetic Ingredient Review 123 Coty 72, 76 CoverGirl 30, 59 Crimson 59 Cussons Kids 81 Dabur 48 Daniel Jouvance 81 Datamonitor 40 Davi 81 Deborah Lippmann 59 Dermalogica 28 Dermelect Cosmeceuticals 59 Dettol 81 Dove 81, 108 Dr.
The Rhapsody Trio for Two Violins and Viola of 1928 was radical, with very un-English chromatics and Schoenbergian approach to tonality.
Black Emperor, Grimes, Chromatics, Ty Segall, Wild Flag, Real Estate and Youth Lagoon at Pitchfork Music Festival 2012 and the festival sold out well advance of the festival.
The Horn Call received the horn version of Book 1 which consists of eleven different but basic exercises emphasizing fundamentals of playing, including long tones, flow, slurring, articulation, accuracy, major scales, chromatics, range building, and even a warm-down for the end of the session.
SAT 4TH AUG 2:00 - 2:30 Tieranniesaur 3:00 - 3:45 Heathers 4:15 - 5:15 Interference 5:45 - 6:55 Bob Mould & Band play Copper Blue 7:25 - 8:25 Lisa Hannigan 8:30 - 9:10 Stevie G 9:15 - 10:15 Chromatics 10:20-11:00 Stevie G 11:05-12:15 Chic 12:15-01:15 DJ Kormac 01:20-02:20 Nicolas Jaar SUN 5TH AUG 2:00 - 2:30 Moscow Metro 3:00 - 3:45 West Cork Ukulele Orchestra 4:15 - 5:15 Joan As Policewoman 5:45 - 6:45 Roy Harper 7:15 - 8:15 Paul Buchanan 8:45 - 10:00 Mick Flannery 10:05-10:50 Cian Finn 10:55-12:05 Toots & the Maytals 12:10-01:10 Revelation Sounds 01:15-02:30 John Daly